Pitch ability as an aptitude for tone learning; On the cognitive basis of contact-induced sound change: Vowel merger reversal in Shanghainese; Bilingual perceptual benefits of experience with a heritage language; Context effects on second-language learning of tonal contrasts; Relationships of attitudes toward homework and time spent on homework to course outcomes: The case of foreign language learning; A novelty effect in phonetic drift of the native language; The production and perception of coronal fricatives in Seoul Korean: The case for a fourth laryngeal category; Evidence for language transfer leading to a perceptual advantage for non-native listeners; Rapid and multifaceted effects of second-language learning on first-language speech production; Production of phonetic and phonological contrast by heritage speakers of Mandarin; English loanword adaptation in Burmese